<template>
  <div>
    <a-layout>
      <a-layout-content :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }">
        <p>
          <a-form layout="inline" :model="param">
            <a-form-item>
              <a-input v-model:value="param.name" placeholder="名称"></a-input>
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handleQuery({ page: 1, size: pagination.pageSize })">查询</a-button>
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="add()"> 新增 </a-button>
            </a-form-item>
          </a-form>
        </p>
        <a-table :columns="columns" :row-key="(record) => record.id" :data-source="ebooks" :pagination="pagination" :loading="loading" @change="handleTableChange">
          <template #bodyCell="{ column, record }">
            <template v-if="column.key === 'cover'">
              <a-image :src="record.cover" alt="图片加载失败" style="width: 80px; height: 80px" />
            </template>
            <template v-if="column.key === 'category'">
              <span>{{ getCategoryName(record.category1Id) }}/{{ getCategoryName(record.category2Id) }}</span>
            </template>
            <template v-if="column.dataIndex === 'action'">
              <a-space size="small">
                <a-button type="primary">
                  <router-link :to="'/admin/doc?ebookId=' + record.id"> 文档管理</router-link>
                </a-button>
                <a-button type="primary" @click="edit(record)"> 编辑 </a-button>
                <a-popconfirm title="删除后不可以恢复，确认删除?" ok-text="是" cancel-text="否" @confirm="handleDelete(record.id)">
                  <a-button type="danger"> 删除 </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </template>
        </a-table>
      </a-layout-content>
    </a-layout>

    <a-modal title="电子书表单" v-model:open="modalVisible" :confirm-loading="modalLoading" @ok="handleModalOk">
      <a-form :model="ebook" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
        <a-form-item label="封面">
          <a-input v-model:value="ebook.cover" />
        </a-form-item>
        <a-form-item label="名称">
          <a-input v-model:value="ebook.name" />
        </a-form-item>
        <a-form-item label="分类">
          <a-cascader v-model:value="categoryIds" :field-names="{ label: 'name', value: 'id', children: 'children' }" :options="level1" />
        </a-form-item>
        <a-form-item label="描述">
          <a-textarea v-model:value="ebook.description" type="textarea" />
        </a-form-item>
      </a-form>
    </a-modal>
  </div>
</template>

<script lang="ts" setup>
import axios from 'axios'
import { ref, onMounted } from 'vue'
import { Tool } from '@/utils/tool'
import { message } from 'ant-design-vue'

const ebooks = ref() //定义查询电子书返回集合

//定义分页参数
const pagination = ref({
  current: 1,
  pageSize: 2,
  total: 0,
})
const loading = ref(false)
const columns = [
  {
    title: '封面',
    key: 'cover',
    dataIndex: 'cover',
  },
  {
    title: '名称',
    dataIndex: 'name',
  },
  {
    title: '分类',
    key: 'category',
    dataIndex: 'category',
  },
  // {
  //   title: '分类一',
  //   key: 'category1Id',
  //   dataIndex: 'category1Id',
  // },
  // {
  //   title: '分类二',
  //   dataIndex: 'category2Id',
  // },
  {
    title: '文档数',
    dataIndex: 'docCount',
  },
  {
    title: '阅读数',
    dataIndex: 'viewCount',
  },
  {
    title: '点赞数',
    dataIndex: 'voteCount',
  },
  {
    title: 'Action',
    key: 'action',
    dataIndex: 'action',
  },
]

onMounted(() => {
  handleQueryCategory()
})

//查询分类数据级联展示
const categoryIds = ref() //保存选中分类数组[100:101] 对应海洋植物:藻类植物
const level1 = ref() //保存分类数据
let categorys: any

const handleQueryCategory = () => {
  loading.value = true
  axios.get('/category/all').then((resp) => {
    loading.value = false
    const data = resp.data
    categorys = data.content

    if (data.success) {
      level1.value = []
      level1.value = Tool.array2Tree(categorys, 0)
      //加载完分类后，再加载电子书，否则如果分类树加载很慢，则电子书的渲染会报错
      handleQuery({
        page: 1,
        size: pagination.value.pageSize,
      })
    } else {
      message.error(data.message)
    }
  })
}

const param = ref()
param.value = {}

//修改查询方法 添加name参数
const handleQuery = (params: any) => {
  loading.value = true
  axios
    .get('/ebook/list', {
      params: {
        page: params.page,
        size: params.size,
        name: param.value.name,
      },
    })
    .then((resp) => {
      loading.value = false
      const data = resp.data
      if (data.success) {
        ebooks.value = data.content.list

        //重置分页按钮
        pagination.value.current = params.page
        pagination.value.total = data.content.total
      }
    })
}

/*
 * 表格点击页码时触发
 * */
const handleTableChange = (pagination: any) => {
  handleQuery({
    page: pagination.current,
    size: pagination.pageSize,
  })
}

// 编辑相关功能
const ebook = ref()
const modalVisible = ref(false)
const modalLoading = ref(false)

//编辑
const edit = (record: any) => {
  modalVisible.value = true
  ebook.value = Tool.copy(record)
}

const handleModalOk = () => {
  modalLoading.value = true

  //获取分类1 及分类2的值
  ebook.value.category1Id = categoryIds.value[0]
  ebook.value.category2Id = categoryIds.value[1]

  axios.post('/ebook/save', ebook.value).then((resp) => {
    const data = resp.data
    if (data.success) {
      modalVisible.value = false
      modalLoading.value = false
      //重新加载列表
      handleQuery({
        page: pagination.value.current,
        size: pagination.value.pageSize,
      })
    } else {
      message.error(data.message)
    }
  })
}

//新增
const add = () => {
  modalVisible.value = true
  //清空对话框数据
  ebook.value = {}
}

//删除
const handleDelete = (id: number) => {
  axios.delete('/ebook/delete/' + id).then((resp) => {
    if (resp.data.success) {
      pagination.value.total--
      if (pagination.value.total % pagination.value.pageSize == 0) {
        pagination.value.current--
      }
      //重新加载列表
      handleQuery({
        page: pagination.value.current,
        size: pagination.value.pageSize,
      })
    }
  })
}

const getCategoryName = (cid: string) => {
  //传递的cid为number类型 与categorys中的id为string类型 需要修改
  let cidstr: string = cid.toString()
  let result = ''

  // 初版的item是string类型
  categorys.forEach((item: any) => {
    if (item.id === cidstr) {
      result = item.name
    }
  })
  return result
}
</script>
